On: Cardio fitness is a strong, consistent predictor o...

[darth_avocado]

Smoking does reduce appetite and therefore can help in weight loss/getting in shape. (I don’t smoke)

[EasyMark → darth_avocado]

I have definitely seen more than a few smokers who quit gain weight, no idea if it's picking up a new addiction or if the smoking subdued their hunger pangs, or some combination thereof.

[TylerE → EasyMark]

Nicotine is absolutely scientifically known to be an appetite suppressant.

[thefz → darth_avocado]

Getting rid of all the tar and chemicals takes a significant daily toll on the body, which has a definite caloric cost.